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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C am p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" I <br /> http://www.mccanTbell.com/E-mail:main@mccampbell.com <br /> Analytical Report <br /> Client: BSK Associates Engineers&Laboratories WorkOrder: 2312D25 <br /> Date Received: 12/19/2023 14:00 Extraction Method: DOD QSM <br /> Date Prepared: 12/27/2023 Analytical Method: DOD QSM <br /> Project: E2001601F; Stockton Airport PFAS Samples Unit: µg/Kg <br /> Perfluorinated Compounds <br /> Client ID Lab ID Matrix Date Collected Instrument Batch ID <br /> MW-1@5' 2312D25-002A Soil 12/18/2023 11:32 LC-MS3 01032024 DOD S_ 284839 <br /> Analytes Result MDL RL DF Date Analyzed <br /> PFOSA ND 0.21 1.0 1 01/03/2024 15:12 <br /> PFPeA ND 0.26 1.0 1 01/03/2024 15:12 <br /> PFPeS ND 0.17 1.0 1 01/03/2024 15:12 <br /> PFTeDA ND 0.19 1.0 1 01/03/2024 15:12 <br /> PFTrDA ND 0.29 1.0 1 01/03/2024 15:12 <br /> PFUnA ND 0.34 1.0 1 01/03/2024 15:12 <br /> Internal Standard REC % Limits <br /> 13C2-4:2 FTS 98 50-150 1 01/03/2024 15:12 <br /> 13C2-6:2 FTS 103 50-150 1 01/03/2024 15:12 <br /> 13C2-8:2 FTS 128 50-150 1 01/03/2024 15:12 <br /> 13C2-PFDoA 93 50-150 1 01/03/2024 15:12 <br /> 13C2-PFTeDA 89 50-150 1 01/03/2024 15:12 <br /> 13C3-HFPO-DA 92 50-150 1 01/03/2024 15:12 <br /> 13C3-PFBS 91 50-150 1 01/03/2024 15:12 <br /> 13C3-PFHxS 92 50-150 1 01/03/2024 15:12 <br /> 13C4-P F BA 90 50-150 1 01/03/2024 15:12 <br /> 13C4-P F H pA 95 50-150 1 01/03/2024 15:12 <br /> 13C5-P F HxA 93 50-150 1 01/03/2024 15:12 <br /> 13C5-PFPeA 98 50-150 1 01/03/2024 15:12 <br /> 13C6-PFDA 102 50-150 1 01/03/2024 15:12 <br /> 13C7-PFUdA 95 50-150 1 01/03/2024 15:12 <br /> 13C8-PFDA 85 50-150 1 01/03/2024 15:12 <br /> 13C8-PFOS 92 50-150 1 01/03/2024 15:12 <br /> 13C8-PFOSA 85 50-150 1 01/03/2024 15:12 <br /> 13C9-PFNA 90 50-150 1 01/03/2024 15:12 <br /> d3-McFOSAA 97 50-150 1 01/03/2024 15:12 <br /> d5-EtFOSAA ill 50-150 1 01/03/2024 15:12 <br /> 13C2-PFHxDA 108 50-150 5 01/03/202415:01 <br /> d3-McFOSA 76 50-150 1 01/03/2024 15:12 <br /> d5-EtFOSA 90 50-150 1 01/03/2024 15:12 <br /> d7N-McFOSE 65 50-150 1 01/03/2024 15:12 <br /> d9N-EtFOSE 83 50-150 1 01/03/2024 15:12 <br /> Analyst(s): PJA <br /> (Cont.) <br /> DoD-ELAP Cert#L22-757•CA ELAP 1644 <br /> Page 9 of 22 <br />